package org.example.utils;

/**
 * 把一个字符串 转为首字母大写的 /小写
 */
public class StringUtils {
    public static String upperCaseFirstLetter(String field) {
        if(org.apache.commons.lang3.StringUtils.isEmpty(field)) {
            return  field;
        }
        return field.substring(0,1).toUpperCase() + field.substring(1);
    }

    public static String lowerCaseFirstLetter(String field) {
        if(org.apache.commons.lang3.StringUtils.isEmpty(field)) {
            return  field;
        }
        return field.substring(0,1).toLowerCase() + field.substring(1);
    }
}
